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Precision bearings
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Bearing vibration noise
Service Hotline 400-688-9811 0769-22335878
Precision bearings
Bearing accuracy including dimensions and running accuracy by Iso or JIS standard (Rolling accuracy) to determine. Dimensional accuracy indicates the accuracy of the standard bearing mounting shaft or bearing housing necessary. Rotary precision bearings during operation indicates the limit allowed in the beating.
Depending on the size tolerances and jitter accuracy, ZGSL deep groove ball bearings Accuracy Rating ABEC-1 to ABEC-7 range. ABEC-1 is the standard grade, a higher grade ABEC-3, ABEC-5 above for special purposes. The tolerance level is set according to international standards IS0492, and other criteria corresponding to the level below:
Each industry standard grade table
|
standard
|
Application
Standard
|
Accuracy class
|
||||
|
ANSI
|
ANSI/ABMA Std.20
|
ABEC-1
|
ABEC-3
|
ABEC-5
|
ABEC-7
|
ABEC-9
|
|
ISO
|
ISO 492
|
Class0,6X
|
Class 6
|
Class 5
|
Class 4
|
Class 2
|
|
DIN
|
DIN 620
|
P0
|
P6
|
P5
|
P4
|
P2
|
Deep groove ball bearing tolerance class ABEC-1（P0）
The inner ring
tolerance μm
|
d/mm
|
△dmp
|
Vdp
|
Vdmp
|
Kia
|
△Bs
|
Vbs
|
|||||
|
9
|
0.1
|
2,3,4
|
|||||||||
|
Over
|
Include
|
High
|
low
|
Max
|
|
Max
|
High
|
low
|
Max
|
||
|
0.6
|
2.5
|
0
|
-8
|
10
|
8
|
6
|
6
|
10
|
0
|
-40
|
12
|
|
2.5
|
10
|
0
|
-8
|
10
|
8
|
6
|
6
|
10
|
0
|
-120
|
15
|
|
10
|
18
|
0
|
-8
|
10
|
8
|
6
|
6
|
10
|
0
|
-120
|
20
|
|
18
|
30
|
0
|
-10
|
13
|
10
|
8
|
8
|
13
|
0
|
-120
|
20
|
|
30
|
50
|
0
|
-12
|
15
|
12
|
9
|
9
|
15
|
0
|
-120
|
20
|
|
50
|
80
|
0
|
-15
|
19
|
19
|
11
|
11
|
20
|
0
|
-150
|
25
|
Outer
tolerance μm
|
d/mm
|
△dmp
|
Vdp
|
Vdmp
|
Kia
|
△Bs
|
Vcs
|
||||||
|
9
|
0.1
|
2,3,4
|
2,3,4
|
|||||||||
|
Over
|
Include
|
High
|
low
|
Max
|
Max
|
Max
|
High
|
low
|
Max
|
|||
|
2.5
|
6
|
0
|
-8
|
10
|
8
|
6
|
10
|
6
|
15
|
With a bearing, be consistent |
||
|
6
|
18
|
0
|
-8
|
10
|
8
|
6
|
10
|
6
|
15
|
|||
|
18
|
30
|
0
|
-9
|
12
|
9
|
7
|
12
|
7
|
15
|
|||
|
30
|
50
|
0
|
-11
|
14
|
11
|
8
|
16
|
8
|
20
|
|||
|
50
|
80
|
0
|
-13
|
16
|
13
|
10
|
20
|
10
|
25
|
|||
|
80
|
120
|
0
|
-15
|
19
|
19
|
11
|
26
|
11
|
35
|
|||
Deep groove ball bearing tolerance class ABEC-3（P6）
The inner ring
tolerance μm
|
d/mm
|
△dmp
|
Vdp
|
Vdmp
|
Kia
|
△Bs
|
Vbs
|
|||||
|
9
|
0.1
|
2,3,4
|
|||||||||
|
Over
|
Include
|
High
|
low
|
Max
|
Max
|
Max
|
High
|
low
|
Max
|
||
|
0.6
|
2.5
|
0
|
-7
|
9
|
7
|
5
|
5
|
5
|
0
|
-40
|
12
|
|
2.5
|
10
|
0
|
-7
|
9
|
7
|
5
|
5
|
6
|
0
|
-120
|
15
|
|
10
|
18
|
0
|
-7
|
9
|
7
|
5
|
5
|
7
|
0
|
-120
|
20
|
|
18
|
30
|
0
|
-10
|
10
|
8
|
6
|
6
|
8
|
0
|
-120
|
20
|
|
30
|
50
|
0
|
-12
|
13
|
10
|
8
|
8
|
10
|
0
|
-120
|
20
|
|
50
|
80
|
0
|
-15
|
15
|
15
|
9
|
9
|
10
|
0
|
-150
|
25
|
Outer
tolerance μm
|
d/mm
|
△dmp
|
Vdp
|
Vdmp
|
Kia
|
△Cs
|
Vcs
|
||||||
|
9
|
0,1
|
2,3,4
|
2,3,4
|
|||||||||
|
Over
|
Include
|
High
|
low
|
Max
|
Max
|
Max
|
High
|
low
|
Max
|
|||
|
2.5
|
6
|
0
|
-7
|
9
|
7
|
5
|
9
|
5
|
8
|
With a bearing, be consistent |
||
|
6
|
18
|
0
|
-7
|
9
|
7
|
5
|
9
|
5
|
8
|
|||
|
18
|
30
|
0
|
-8
|
10
|
8
|
6
|
10
|
6
|
9
|
|||
|
30
|
50
|
0
|
-9
|
11
|
9
|
7
|
13
|
7
|
10
|
|||
|
50
|
80
|
0
|
-11
|
14
|
11
|
8
|
16
|
8
|
13
|
|||
|
80
|
120
|
0
|
-13
|
16
|
16
|
10
|
20
|
10
|
18
|
|||
Deep groove ball bearing tolerance class ABEC-5（P5）
The inner ring
tolerance μm
|
d/mm
|
△dmp
|
Vdp
|
Vdmp
|
Kia
|
Sd
|
Sia
|
△Bs
|
Vbs
|
|||||
|
9
|
0,1,2,3,4
|
||||||||||||
|
Over
|
Include
|
High
|
low
|
Max
|
Max
|
Max
|
Max
|
Max
|
High
|
low
|
Max
|
||
|
0.6
|
2.5
|
0
|
-5
|
5
|
4
|
3
|
4
|
7
|
7
|
0
|
-40
|
5
|
|
|
2.5
|
10
|
0
|
-5
|
5
|
4
|
3
|
4
|
7
|
7
|
0
|
-40
|
5
|
|
|
10
|
18
|
0
|
-5
|
5
|
4
|
3
|
4
|
7
|
7
|
0
|
-40
|
5
|
|
|
18
|
30
|
0
|
-6
|
6
|
5
|
3
|
4
|
8
|
8
|
0
|
-80
|
5
|
|
|
30
|
50
|
0
|
-8
|
8
|
6
|
4
|
5
|
8
|
8
|
0
|
-120
|
5
|
|
|
50
|
80
|
0
|
-9
|
9
|
7
|
5
|
5
|
8
|
8
|
0
|
-150
|
6
|
|
Outer
tolerance μm
|
d/mm
|
△dmp
|
Vdp
|
Vdmp
|
Kia
|
Sd
|
Sea
|
△Cs
|
Vcs
|
||||||
|
9
|
1,2,3,4
|
|||||||||||||
|
Over
|
Include
|
High
|
low
|
Max
|
Max
|
Max
|
Max
|
Max
|
High
|
low
|
Max
|
|||
|
2.5
|
6
|
0
|
-5
|
5
|
4
|
3
|
5
|
8
|
8
|
With a bearing, be consistent |
5
|
|||
|
6
|
18
|
0
|
-5
|
5
|
4
|
3
|
5
|
8
|
8
|
5
|
||||
|
18
|
30
|
0
|
-6
|
6
|
5
|
3
|
6
|
8
|
8
|
5
|
||||
|
30
|
50
|
0
|
-8
|
7
|
5
|
4
|
7
|
8
|
8
|
5
|
||||
|
50
|
80
|
0
|
-9
|
9
|
7
|
5
|
8
|
8
|
10
|
6
|
||||
|
80
|
120
|
0
|
-10
|
10
|
8
|
5
|
10
|
9
|
11
|
8
|
||||